If a planet or a moon to some planet got volcanos, there will be at least some single celled organism and bacteria there...I guess you can find that on lots of planets in the universe. More advanced lifeforms is quite rare I believe....

well heres how i see it... 1. either they choose not to contact us(because we wouldnt be able to handle it)2. no advanced races have found us yet.3. travel faster than the speed of light is actually impossible as we believe now, so no one can reach us.

personally i think its 1.i dont believe in the probing crap... and probably 99.99% of sightings arent actual aliens.... but yeah.

Seems everyone agrees there is some type of life out there...It's split on whether or not there is "intellligent" life out there...I believe there is...If the universe goes on forever, then somewhere out there there are...Do I believe they live among us on earth? No...Although anything is possible...

Tough call, it may be possible that there's life out there. There's gotta be other galaxies with life. I know around here, Earth has life. Perhaps at one point, there was life on the planet we call Mars.

There's more of a chance of life existing than there is of it not existing. Some of it might not even be 'intelligent', by our standards, but some of it is bound to be, to an extent, at least. If it's in another galaxy, then it doesn't matter, beacuse we'll never be able to contact one another until we master time and space, which we won't do beacuse we're busy keeping a brother down and stuff.